When I was a witness I saw two families lose their young child. Both due to a disease that required a blood transfusion to save thier life. After each child died both families left the religion for a while. Alas they later returned (several years later). I think for a time they blamed God, like how could you do this to us?
Then realized that according to the teachings they were their only chance ot see their child again..
That's how they keep them..threats....
Snoozy